40432231213 has 16 divisors (see below), whose sum is σ = 46154460672. Its totient is φ = 35083584000.

The previous prime is 40432231193. The next prime is 40432231219. The reversal of 40432231213 is 31213223404.

It is a cyclic number.

It is not a de Polignac number, because 40432231213 - 2²⁵ = 40398676781 is a prime.

It is a super-2 number, since 2×40432231213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40432231219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787228 + ... + 837013.

It is an arithmetic number, because the mean of its divisors is an integer number (2884653792).

Almost surely, 2^40432231213 is an apocalyptic number.

It is an amenable number.

40432231213 is a deficient number, since it is larger than the sum of its proper divisors (5722229459).

40432231213 is a wasteful number, since it uses less digits than its factorization.

40432231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624356.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 40432231213 its reverse (31213223404), we get a palindrome (71645454617).

The spelling of 40432231213 in words is "forty billion, four hundred thirty-two million, two hundred thirty-one thousand, two hundred thirteen".